<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login</title>
</head>
<body>
    <form method="post">
        <p>user:<input type="text" name="user" placeholder="用户名"><br></p>
        <p>password:<input type="password" name="password" placeholder="password"><br></p>{{ msg }}
        <input type="submit" value="sumbit">
    </form>
</body>
</html>